Drilling-machine.



A. W. DRAKE & W. I. RAVERT.

DRILLING MACHINE. APPLIPATION FILED SEPT. 12, 1910 Patented Aug. 13, 1912.

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A. W. DRAKE & W. I. RAVERT,

DRILLING MACHINE.

APPLICATION TILED SEPT. 12, 1910.

Patented Aug.- 13, 1912.

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DRILLING MACHlNE,

APPLICATION FILED SEPT. 12, 1910.

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DRILLING MACHINE.

APPLIUATION FILED SEPT. 12, 1910 Peztented Aug. 13, 1912. 14 SH'EETS S HEET 7.

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DRILLING MACHINE.

APPLICATION FILED SEPT. 12, 1910.

Patented Aug. 13, 1912.

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A. W. DRAKE & W. I. RAVERT.

DRILLING MACHINE. APPLICATION FILED $EPT.12, 1910.

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WITNESSES ATTORNEY A, W. DRAKE (in W. I. RAVERT.

' DRILLING MACHINE.

APPLIUATIOH FILED SEPT.12, 19101 Patentd Aug. 13, 1912.

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A. W. DRAKE & W. I. RAVERT. DRILLING momma. APPLICATION FILED SEPT. 12, 1910.

Patented Aug. 13, 1912.

INVENTORS l4 SHEETS-SHEET1 WITNESSES ATTORNEY UNITED STATES PATENT OFFICE.

AUGUSTUS XV. DRAKE AND WILLIAM I. RAVERT, OF LATTIMER MINES, PENNSYL- VANIA; SAID RAVERT ASSIGNOR T0 SAID DRAKE.

DRILLING- Specification of MACHINE.

Application filed September 12, 1910. Serial No. 581,554.

To all echo m it may concern lie it known that ve, Arors'rtis V. Dnaun and lvtmmnt Havana, citizens of the United States, residing at. Lattimer Mines, in the county of Luzerne and State of Pennsylvania, have invented a new and useful Drilling-Machine, of which the following is a specification.

The invention relates to drilling machines for boring artcsian wells and holes for various purposes in and around mines, uarries, e c. ii

The object of the present invention is to improve the construction of drilling machines, and to provide a simple, eflicient. and comparatively inexpensive rotary drilling machine, designed principally for core drilling. and equipped with a main hoisting low speed drum of sutlicient powerto enable it. to be used to lower tools and rods intothc bore hole preparatory to drilling, and to hoist the same to the surface when the core barrel is fillcdand for other purposes, and adapted to be connected with the drill spindle when the same is in use, and capable of ready operation independently of the means for rotating the spindle to frequently raise and lower slightly the drilling tool at the bottom of the bore hole to facilitate the cutting of the rock and to help free tlie ac ciunulatcd chippings they are pumped from the bottom of the bore hole.

A. further object of the invention is to equip the drilling machine with an auxiliary hoisting drum. designed to carry sutlicient rope to extend to the bottom of the bore hole, and adapted to have connected with its rope various tools for driving casing. removing broken or parted rods and tools. drilling through broken strata. but particularly for removing by means of a tapered socket or v holding device cores that fail to come to the surface by the usual means when a core barrel is removed. and capable of operation at: a

high speed when picking up a lost core or fishing out broken rods and tools and in similar operations. thereby effecting an immense saving in time and performing in a few minutes operations which require hours of labor with tubular rods and the slow process ofcoupling and uncoupling the same.

Another object. of the invention is to produce a drilling machine having means for working parts to be readily moved back from the bore hole in order to be out of the way when the auxiliary drum is used for performing any of its various functions.

lVith these and other objects in view, the invention consists in the construction and -.novel combination of parts hereinafter fully -described, illustrated in the accompanying drawings, and pointed outin the claims hereto appended.

In the drawings :Figure l is a side elevation of a drilling machine constructed in accordance with this invention. Fig. 2 is a similar view of the opposite side of the-machine. Fig. 3 is a plan view. Fig. 4 is an end elevation of the front of the machine. Fig. 5 is a similar view of the drill spindle and the means for mounting the same, illustrating the pivotal adjustment of the drill spindle. Fig. 6 is a transverse sectional view on the line 6-6 of Fig. 1. Fig. 7 is an elevation of the drill plate stand. Fig. 8 is a transverse sectional view, taken substan tially on the line S8 of Fig. 1. Fig. 9 is an elevation of the rear end of the machine Figure 10 is a transverse sectional view on the line 10-10 of Fig. 1. Fig. 11 is a longitudinal sectional view on the line l111 of Fig. (3. Fig. 12 is an end view of the main hoisting drum. the shaft. thereof being in section. Fig. 13 is a longitudinal secof the base and the sub-base.

tional View Fig. 14. is a plan view of the sub-base. F ig. 15 is an enlarged sectional view of the friction clutch. Fig. 16 is a transverse sectional view on the line l6--16 of Fig. 15. 17 is a detail sectional view on the line 1717 of Fig. 15. Fig. 18 is a detail viewof the sectional threaded sleeve of the friction clutch. Fig. 19 is a detail view of the friction clutch thrust collar. 20 is a detail longitudinal sectional view of one end of the base, illustrating the manner of mounting the vertical engine. Fig-21 is a longitudinal sectional view on the line 2l-21 of Fig. 1. Fig. 22 is a side elevation. showing the rope of the main hoisting drum con-- nccted with the swivel of the drill spindle. Fig. is a similar View, the base being ,moved. back, the rope of the auxiliary drum being arranged for operation and the crank; element of the auxiliary drum shaft being connected with the walking beam. FigfQ-l is a detail side view of the coupling device enabling the drill spindle and. the other for detachably connecting the walking beam 5 lever and screw. Fig. 27 is an enlarged detail sectional view, illustrating the connec tion between the main drum brake lever and the screw. Fig. 28 is a plan view, illustrating the arrangement. 0 the ropes of the main and auxiliary drums on the sheaves of the walking beam and derrick. Fig. 29 is a detail vertical sectional view, illustrating.

the construction for connecting the swivel of the drill spindle with the vertical guide of the drill plate. Fig. 30 is a horizontal sectional view of the same. F i 31 is a detail view of the gearing for sli ing the base on the sub-base.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

The specification is a disclosure of one form of the invention, while the claims define the actual scope of the invention.

In the embodiment of the invention illustrated in the accompanying drawings, the frame of the machine comprises in its construetion-an approximately oblong base 1, mounted on a sub-base 2 and consisting of a hollow casting having a top, bottom, side and end walls, and reinforced at intervals by transverse webs or flanges 3, slidably mounted on spaced rails 4 of the sub-base. The sub-base is substantially oblong, as clearly. illustrated 'in' Fig. 145 of the drawings, and the spaced rails, which form guides for the frame of theamachine, are hollow and are formed integral with the bottom plate and are connected at intervals by transverse webs or flanges 5. The guiding rails have horizontal top ortions beveled at opposite sides and provi ed with longitudinal slots 6 for the reception of bolts 7 for securing the base in its adjusttory operating lever 22.

or beveled upper portions of the guiding rails and beveled at their inner side'edges to conform to the configuration of the same.

The bottom of the sub-base is extended laterall beyond the guiding rails to form longitu inal projecting ledges-or flanges 11., and perforated bosses or enlargements 12 are provided at intervals along the flanges 11 for the reception of bolts, or other suitable fastening means for securing the subbase to the sills or other frame-work upon which the machine ismounted atthe place where it is to be operated. The front end of the sub-base is provided with an approximately semi-circular recess 13, and is flared at opposite sides of the same and is adapted to extend partially around the bore hole and to support the frame of the machine at opposite sides thereof. The frame of the machine slidable backwardly and forwardly toward and from the bore hole to enable a drill spindle 14 to be arranged over the' same and also to be carried back- 'wardly out of the way of the bore hole to expose the latter to permit operations other than drilling to be performed, as hereinafter fully ex lained. The bottom of the base is rovide with a central series of drain openings 15, and the sub-base is provided with wntral and side drain openings 16 and 17, the side drain openings being located at the bottom of the hollow guiding rails.

The backward and forward adjustment of the frame of the machine on the base is effected by means of horizontal racks 18, located at opposite sides of the sub-base and supported by brackets 19 and meshing with opposite pinions 2'0, keyed or otherwise sedared to a transverse-shaft, 21. The transverse shaft, which extends across the base,

is journaled insuitable bearings of the same,

and it projects at one end beyond the adjacentgpinion to form a pivot for an oscilla- The operating Yerted and havenuts 8 at their upper ends, "lpand the base 01': the frame is provided in its lever is suitably secured to the extended pivot portion of the transverse shaft, and it carries a pivoted reverslble gravityacting ment upon the sub-base. The bolts are in- I 50 enable the side walls with openings 9, adapted to afford access to the nuts of the inverted bolts 7 to justment. The openings 9 are of sutiicient size to permit a wrench to be-introduced into theahollow base from the-exterior for operating the nuts, and any number of bolts 55 may be employed for clamping the frameon l the sub-base. In practice it is preferable to provide an'additional'opening 9 at a point between-the last two bolts, as clearly shown in Fig. :13 of the drawings. This.will en-- 60 able the'rear bolt to be used should the rearward adjustment of theframe carry the rearmost opening beyond the sub-base, The

bottom of the base 1 is provided at its lower face with parallel integral ribs 10,.formin'ges grooves to receive the transversely tapered frame to be-clamped after ad-' pawl 23, arranged to engage the adjacent pinion forrotating the transverse shaft 21.

The-pawl is pivoted at its upper or outer end tothe inner side or face of the operating lever, and it has opposite engaging portions at its other end, adapted to extend be tween the teeth of the adjacent pinion for i connecting the lever with the same. The pawl is adapted to extend from either side ,ofthe lever to engage with the co-act-ing pinion, and'its engaging portions are oppositely beveled and present an engaging shoulder to and are adapted to rotate the pinion when thepawl is moved forwardly, and they present a beveled face or edge to the pinion and ard adapted to ride over the same when the pawl is moved backwardly.

-This renders the pawl automaticin its operclutch face 61, co-acting with a clutch face 62 of the drill spindle clutch 58. The drill spindle clutch 58 is slidably interlocked with the engine shaft by means of opposite keys 63, mounted on the shaft and fitting in corresponding grooves of the drill spindle clutch 58. The drill spindle clutch 58 is limited in its sliding movement by a set collar 58*, and it is provided with an annular groove receiving a thrust collar 64: and havin upper and lower projecting pivots operating 1n slots of a forked portion 65 of a clutch operating lever 66, disposed horizontally and extending outwardly from the drill spindle clutchand pivoted at a point intermediate of its ends in a bifurcation of a bracket 67 by a bolt 68. The bracket, which supports the operating lever 66, consists of a horizontal top portion, a vertical attaching portion and a vertical bracing rib or flange. The attaching portion is bolted or otherwise secured to a flat surface at the rear face of the upper bearing portion of the drill plate stand, and the horizontal top portion is pro-' vided with a plurality of perforations 69, for the reception of a pin'70, connected with the bracket 67 by a chain and adapted to engage a registering perforation of the clutch operating lever 66. The pin is adapted to hold the sliding clutch in or out of engagement with the clutch face of the gear 56. The teeth of the clutch face 62 are shouldered at their front side edges in the direction of movement for rotating the drill spindle, and they are beveled at their ends and are provided at their rear edges with slight shoulders 71, adapted to overcome the tendency to disengage the clutch face of the bevel gear due to back lash.

The longitudinal engine shaft is rotated by a vertical engine mounted upon the base of'the frame and carried by thef latter in its backward and, forward movements on the sub-base, so that the connections between theengine and the main longitudinal or engine shaft 38 are not afiected by such movements. The engine is located in the space between the intermediate and end engine stands 33 and 34, and it comprises in its construction a pair of vertical cylinders 72, spaced apart and having an integral valve chest interposed between the cylinders. Either steam or compressed air may be used as a motive fluid for operating the engine, but an electric -or other motor may be mounted on the frame for rotating the main longitudinal shaft.' .The motive fluid is introduced through a feed or supply pipe 7 3, provided with a suitable throttle valve .74 and also having a valve, which is automaticall controlled by a governor 75. The motive uid is exhaust-l ed through a pipe 76, having a central depending branches, which'are connected with the vertical cylinders. The piston' rods '17. reciproportion and horizdntally disposed.

cate vertically and are connected by short j connecting rods 78 with cranks 79 of the engine shaft 38, suitable cross heads being connected with the piston rods and operat-l' ing in vertical guides 80 of an upright cross head frame 81. The cross is rigidly secured to the vertical cylinders, is provided at an intermediate point between the cross the stems 83 of suitable slide valves, which operate in the valve chest of the engine for controlling the admission and exhaust of the motive fluid. The valve stems are connected with rods 84 of eccentrics 85, mounted on the engine shaft and operating in the usual head guides 80 with a guide 82 for manner to reciprocate the slide valves,' When the engine is operated the main longitudinal shaft v38 is rotated. The vertical cylinders are connected with a horizontal drain pipe and-theintermediate valve chest,

86 by vertical branches, having suitable valves 87 and 88 for opening and closing the.

drain pipe connections. Thewdrain pipe is I located within the hollow base-and preferably extends from the rear end thereof, and

the valves are provided with elongated valve stems 89 and 90, extending through the front wall of the hollow base and hand wheels, or other suita means. .The valve stem'90 of the valve, which is connected with the steamchest, is

set at an angle to clear the exhaust pipe :76, 7

but the drain pipe controlling means may extend to any other portion of themachine. ,100 does not constitute a portion of the present invention and as any preferred type of mo- As the specific construction of the engine provided with 1 le operating tor' may be employed, further description of I the details of the engine structure is deemed unnecessary. The governor may also be of any preferred construction, and it is connected with the engine shaft by a belt 91, arranged on pulleys 92 and 93 mounted, respectively, on the engine shaft and on" a horizontal shaft of'the governor. The governor operates in the ordinary manner to automatically control the flow of motive fluid to the engine and thereby regulates and renders uniform the speed of the drilling machine. The rear end of the engine shaft 38-is preferably equipped with a fly wheel 9a, The main longitudinal shaft carries a clutch controlled spur pinion 95, provided at one side with an integral 0 lindrical ex tension 96 and'formed integra with a conical shell or clutch member 97, located at the other-side of the pinion and consisting of a v disk and an inclined or conical rim, ,havi gengaged by an annular series of cured to a sectional ring 99 andtapered-tb is provided with transverse ribs 100, inter.-

. an interior friction face .and adapted to Q;

blocks or shoes 98, bolted or otherwiselser -70 head frame, which posed between the blocks or shoes and spacing the same and forming an annular series of recesses or seats to receive the said blocks or shoes. The ring 99 is also provided at its periphery with a projecting annular rib 101, engaging the blocks or shoes at the outer ends of the'same and fitting in re cesses thereof, as clearly shown in Fig. 15 of the drawings. The sectional ring" is provided at a point intermediate of the inner and outer edges with an inwardly extending annular attaching flange 102, which is bolted to an annular flange 103 of an inner supporting member slidably interlocked with the engine shaft by a key 10-1 and movable longitudinally thereof to engage the blocks or shoes with the rim of the shell and to carry them out of such engagement. The inner supporting member is provided with an annular groove. reccivinga sectional thrust collar 105. provided with projecting ears 106 having threaded openings for the reception of screws 10? for adjustably connecting the thrust collar with a sectional clamping collar 108. The connecting screws 107. which are located at diametrically opposite points, pass through perforations of a projecting ear 100 and an operating arm or lever 110, and are provided with nuts 111 and 112 for securing the screws 107 to the clamping collar and for also engaging the ears 100 of the thrust collar to lock the screws in their adjustment. clamping collar is provided with an in erior annular groove 113. and is fitted tightly on a rotary nut 114, which engages a threaded sleeve 115. The sleeve 115 is split longitudinally to form two sections. and it is secured within the bearing of the intermediate engine stand. being rigidly clamped in ,the recess thereof by the cap or upper section of the hearing. The nut 114 is revided with a peripheral rib 116 to lit the annular groove 113 of the clamping collar, and it adapted to be rotated on the sleeve 11 which is threaded and supported in the bearing of the intermediate engine stand, being preferably provided with triple threads to secure a rapid movement of the clutch. The screws 10'? are adapted to be adjusted to take up the wear of the blocks or shoes to secure the proper frictional eontaet between the engagingmem-bers of the clutch. The operating arm or lever extends outwardly and forwardly and is provided at its outer end ii ith a grip or handle, which is arranged in convenient position to enable the operator to grasp simultaneously both the arm or lever 110 and the drill spindle clutch lever. The clamping collar is also equipped with n counter-weight 117. adiustablv mounted on an inclined rod 118, which extends upwardly from the clamping ring in the opposite direction from the operating arm (n ver. A longitudinally split The sectional I l l i l bushing 115) is arranged on the engine shaft to receive the pinion 95, and it is provided at its forward or outer end with an annular liange, which fits against the outer end of the cylindrical extension of the pinion, and is secured thereto by screws. or other suitable fastening devices. The shell of the friction clutch and the pinion are held against longitudinal movementby means of collars 1;.0 and 121, mounted on the shaft and secured to the same by set screws. The collar 120 is located within the shell of the friction clutch, and the other collar 121 is arranged at the outer end of the bushing 11!).

The spur pinion of the engine shaft meshes with an intermediate gear wheel 122, mounted on an aiixiliary drum shaft 123, jonrnaled in suitable h arings, 121- and 12:) ot' the drill plate stand and the intermediate engine stand and carrying an auxiliary high speed drum 126. Motion is communicated from the auxiliary drum shaft to a main'hoisting low speed drum shaft- 127 by means of a pinion 128. fixed to the airxiliary drum shaft and meshing with a large gear wheel 1:29, mounted on the main drum shaft 127. The auxiliarv drum shaft is located at the rear side of the machine at the upper portion of the frame. and the bearings 194 and 125 are sectional, being provided with removable caps. The shaft 127. which carries a main hoisting lowspeed drum 130, is located at the front of the ma chine in a plane below the auxiliary drum shaft, and is journaled in suitable bearings 131 and 132. which are also sectional. and the drill p late, stand is provided opposite the hearin 131 with an opening 133, adapted to t nable a worn-out bushing to be ouicltly replaced or to permit the mai 1 hoisting drum shaft to be readily introduce into and removed from its hearings.

'lhe gearin -For connecting the main drum shaft with the engine shaft reduces the speed and increases the power sulficientlv to enabl the main drum to control the. rod. and the main drum located between the large. gear 129and a set collar 134. which holds the main drum against movement longitndinallv of the shaft 127. The ma n drum is provided at one end with a friction flange 13:"). which is engaged by a brake band 136. connected at its ends bv a link 137 and an adjusting rod 138 with a. brake lever 130. extending beneath a main drum and pivoted at its rear end to a. brake lever stand 140 by a horizontal pin 141. The hiflhG lever stand is bolted. or otherwise secured upon the base of the frame-adinvent to the pedestal or supporting portion 134 at the Front. end of the base. lhe adjusting rod 138 is composed of adjustable sec ons and is adapted to adjust the bralte and to talte up the wear and cause the band the drum,

' the same b nuts 1'14, engaging the upper and lower of the spring. The spring is secured to and projects from a supporting bracket 145, which is mounted on the drill plate stand at the inner face of the upper bearing portion thereof. The spring yieldably'supports the brake band out of engagementwith the drum when the brake is not applied.

The brake lever 139 is equipped at its rear end with an adjustable counter-weight 146, and it is provided at its front end with a foot receiving plate or portion 147, and is adaptedt o be depressed by the foot of the operator to apply the brake band. In order to enable the main drum band brake to be applied with suflicient force to control a heavy load, the machine is equipped with an operating screw 148, arranged vertically above the brake lever 139 and mounted in a pivotal nut 149 and provided in its lower portion with a longitudinal bore or socket 150 for the reception of a stem 151 ofa yoke 152. The yoke 152 is pivoted in a flanged opening 153 of the brake .lever,

and the stem and the bore form a loose-slid-- able connection between the screw and the brake lever'and permit the brake lever to be operated independently of the screw toapply the brake, when the foot of the 0 erator is sufhcient to control the rod. he nut 149 is formed integral with a horizontal pivot 154, mounted ina horizontal bearing 155 of a bracket 156, and threaded at its extremity to receive a nut 157 for securing the pivot in the bearing of the bracket. The bracket is bolted, or otherwise. secured to the front side face of the pedesta or supporting portion 29 of the base of t e frame. The upper end of the brake operating screw 148 is equipped with a hand wheel, and when it is rotated to apply the brake, thelower end of the screw engages the yoke 152 and forces the brake lever 139 downward and applies pressure to the friction flange of the drum. The auxiliaryhigh speed drum 126 is constructed substantially the same as the low speed drum, and it is provided with adjustablyconnected with the brake band by a vertical screw 16a and mounted on a supporting bracket 165. The screw is pivctally connected with the brake band and and having upward is adjustably secured to the spring by nuts 166, and the supporting bracket 165 is se cured to the inner face of the upper bearing 7 counterweight 170. 'The horizontal pivot 167 is carried by the drill plate stand, and

the auxiliary drum brakelever extends for- 7 i wardly from the brake leverastand to the front of the machine and has a depending front portion, equipped with a pair of foot plates 171, extending in opposite directions y extending shanks or attaching portions, secured to the lever 169 at opposite sides thereof. While only a brake lever is shownv for applying the band brake of the auxiliary drum, it will be a readily understood that the drilling machine may also be equipped with a screw,

constructed similarly to that heretofore de scribed and arranged to actuate the brake lever 169.

The main drum 130 is provided a' clutch face 172, located within the friction flange 135 and co-acting' with a movable clutch 1T3, 'slidably interlocked W113i! the main drum shaft-127 by a key 174, and provid d with an annular groove for-the reception of a thrust collar 1-75. lar 175 is connected by opposite pivots 176 ing bracket 179, and is'adapted to be oscillated horizontally to actuate-the main drum nected with the supporting bracket 179 by a short chain. The supporting bracket 179 is bolted or otherwise secured to the drill plate stand, and the pin is adapted to en age erforations of the, blfurcated portion 0 the bracket and the clutch operating lever. The friction flange 135, which is arranged in spaced relation with the clutch face 172, ex tends out-wardl beyond-the same, and it may be utilize pandin clutch of any preferred construction, w iich may be arranged to, engage the inner face of the friction. flange to lock the main drum to the shaft.1 27.-' f v The auxiliary drum ispi'ovid'ed with a clutch face similar to that of the main drum and is locked to its shaft'123 by a sliding clutch 181, pivot-ally connected with a, forked portion 182 of a clutch operating lever 183, fulcrumed at an intermediate point in connection with an ex- The thrust 001- v i with a forked portion 17 7 of a clutchoper ating lever 178. The clutch operating lever 17 8 is pivoted in a bifurcation of a supportlie in abifurcation of a supporting bracket 184. 

